MAX4397DACTM datasheet(4/30 Pages) MAXIM

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Audio/Video Switch for Dual SCART Connectors

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ELECTRICAL CHARACTERISTICS (continued)

(V12 = 12V, VVID = VAUD = 5V, 0.1µF X5R capacitor in parallel with a 10µF aluminum electrolytic capacitor from VAUD to GNDAUD,

V12 to GNDAUD, and VVID to GNDVID, SET = 100kΩ nominal, RLOAD = 150Ω, TA = 0°C to +70°C, unless otherwise noted. Typical

values are at TA = +25°C.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Encoder Common-Mode

Rejection Ratio

CMRR

MAX4397DA only, over VCM range

Single-ended inputs, f = 1kHz, THD < 1%

ENC inputs differential level, MAX4397DA,

f = 1kHz, THD < 1%

2.08

Input Signal Amplitude

VIN_AC

ENC inputs single-ended, MAX4397SA,

f = 1kHz, THD < 1%

1.31

VRMS

Single ended: VCR_INR, VCR_INL, TV_INR,

TV_INL

0.1

Encoder, MAX4397DA: ENC_INL+,

ENC_INL-, ENC_INR+, ENC_INR-

Input Resistance (Measured at

Parts Input)

RIN

Encoder, MAX4397SA: ENC_INL, ENC_INR

0.1

MΩ

Output DC Level

VOUT_DC

VIN = 0V

0.5 x

V12

Signal-to-Noise Ratio

SNR_A

f = 1.0kHz, 1VRMS application input,

gain = 0dB, 20Hz to 20kHz

RLOAD = 10kΩ, f = 1.0kHz, 0.5VRMS output

0.004

Total Harmonic Distortion Plus

Noise

THD+N

RLOAD = 10kΩ, f = 1.0kHz, 2VRMS output

0.004

Output Impedance

f = 1kHz

Ω

1.414VP-P input, programmable gain to TV

SCART volume control range extends from

-56dB to +6dB

1.5

2.5

Volume Attenuation Step

ASTEP

1.414VP-P input, programmable gain to VCR

audio extends from -6dB to +6dB

5.5

6.5

From V12, f = 1kHz, 0.5VP-P,

(CAUD_BIAS = 47µF), gain = 0dB

Power-Supply Rejection Ratio

PSRR_A

From VAUD, f = 1kHz, 0.5VP-P, VAUD ≥

+4.75V, VAUD ≤ +5.25V, gain = 0dB

Mute Suppression

M_SPR_A

f = 1kHz, 0.5VRMS input, set through I

2C, see

Audio Clipping Level

VCLIP

f = 1kHz, 2.5VRMS input, gain = 6dB,

THD < 1%

3.6

VRMS

Left-to-Right Crosstalk

XTLK_LR

f = 1kHz, 0.5VRMS input, gain = 0dB

Crosstalk

XTLK_CC

TV SCART to VCR SCART or VCR SCART to

TV SCART, f = 1kHz, 0.5VRMS input,

gain = 0dB

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